PI Responsable: Ricardo G. Dias
Coordinator: UA
Funding Source: National
Funding Type: FCT
Acronym: QUANTDYN
Proponent Institution - Universidade de Aveiro (UA)
Campus Universitário de Santiago
Instituto de Nanoestruturas, Nanomodelação e Nanofabricação
Participant Institution - Universidade do Porto (UP)
Universidade do Porto
Centro de Física das Universidades do Minho e do Porto
Ref.: PTDC/FIS-MAC/29291/2017
Start Date: 2018-10-01
End Date: 2022-09-30
State: Ongoing
Summary: The protection of quantum states against
decoherence is essential in the context of quantum computing and
quantum engineering in general. Several approaches exist that aim
to reduce the coupling between the quantum computing system and
the environment and therefore increase the decoherence time. One
of the most interesting, but difficult to implement
experimentally, consists of generating a particularly symmetric
coupling between the system and the environment so that there is a
subspace of states which are decoherence-free. Another approach
consists in storing the information topologically, that is, using
topological invariants.
In this project, we propose to study decoherence processes in: i)
many-body electronic states in topologically non- trivial 1D
interacting systems; ii) many-body spin or electronic states in
frustrated Hamiltonians which allow real space separation between
particles (due to the presence of a flat band in the magnon or
electron energy dispersion).